Pocket-filter.



P. G. FAUNTLEROY.

POCKET FILTER.

APPLIGATION Plum JULY 21. 1914.

Patented Dec. 8, 1914.

HIE NORRIS PEYERS C0 PHOTO-LITHO. wnsuuvo 1 w, :1

POWELL C. FAUNTLEROY, OF THE UNITED STATES ARMY.

POCKET-FILTER.

Application filed July 21, 1914.

To all whom it may concern:

Be it known that I, POWELL C. FAUNTLE- nor, surgeon, United States Army,a citizen of the United States, residing at Fortress Monroe, ElizabethCity county, and State of Virginia, have invented. a new and usefulIndividual Pocket-Filter for the Soldier, of which the following is aspecification.

My invention relates to improvements in filters in which a Wrapped metalframe work is employed in conjunction with a canvas bag; and the objectsof my improvement are, first, to provide a closely woven cotton fabricto cover the skeleton frame work; second, to provide means for securingthe skeleton frame work, wrapped in the filtering material of closelyWoven cotton fabric, to the lower inside end of the canvas bag; and,third, to so proportion the size of the covered metal frame work to thecanvas bag that the latter may be rolled up like a housewife around thefilter contained therein. I attain these objects by the apparatusillustrated in the accompanying drawing, in which- Figure 1 is aperspective view of the water bag, metal frame work, filtering cloth,and container of disinfectant and precipitant powder, disassembled, andemplaced upon a table or the like preparatory to putting together theapparatus; Fig. 2, a detail view of the skeleton metal frame work; Fig.3, a side elevation of the metal frame work wrapped with the filteringmaterial; and Fig. 4, a perspective View of the apparatus assembled andlashed on the canteen.

Similar numerals refer to similar parts throughout the several views.

The container of disinfectant and precipitant powder, 1, is a smallmetallic box or case suitable for the pocket and adapted to contain twoounces of any suitable powder. About five grains of such well knowndisinfecting and precipitating powder is suflicient for a quart of themost grossly polluted water. 98+% of all organisms are removed by theprocess.

The filtering or wrapping cloth, 2, consists of outing flannel incheslong, 4 inches wide, weight 1?; ounces.

The skeleton metal frame work, 3, consists of solid top and bottomplates,1-}x1, four inches apart, and connected by light rods or crossbars as shown; weight of the whole in aluminum equals one ounce.

The canvas bag, 4, for holding a quart or Specification of LettersPatent.

Patented Dec. 8, 1914..

Serial No. 852,137.

more of water, is adapted to contain the metal frame work wrapped withthe filter ing material, a closely woven cotton fabric. This frame workis placed in the canvas bag filled with raw water to which thedisinfectant and precipitant powder is then added. The water afterpassing through the filtering cloth into the frame work is dischargedinto the canteen or cup.

Assemble the filter by first tightly Wrap ping the filtering clotharound metal frame work and carefully securing same by means of tapes;then place in canvas bag, so that the discharge pipe, 5, closed at theupper end and suitably perforated where it runs within the frame work,will project as far as possible through the lower opening of the canvasbag and carefully secure same by the binding cord attached. Sterilizethe filter by filling the canvas bag with boiling water several times,after brushing any sediment off the filtering cloth and allow theboiling water to filter through the apparatus several times. This shouldbe done every night.

To use the filter, having previously assembled and sterilized theapparatus, the.

canvas bag is filled with raw water by means of spout or cup, orimmersing the whole apparatus in the water. The discharge pipe is thenclosed by means of the stopper. The disinfectant and precipitant powderis then sifted into the filled canvas bag in sufficient quantity tocover well the surface of the water. is then closed by drawing thepuckering strings as shown. After shakingjthe bag well several times,the apparatus is held upright for three minutes to secure the action ofthe disinfectant and precipitant powder. Then withdraw the stopper andpermit the passage of the filtered water into the canteen or cup.

What I claim is:

1. The combination of a rollable water bag, a skeleton frame workconstructed and arrangedto be fitted therein at one end so as not tounduly obstruct the capacity or rollability of the bag, and a bandage orwrapper of closely woven fabric adapted to be wound around the skeletonframe, substantially as described.

2. The combination of a bag, a skeleton frame work readily separabletherefrom and constructed and arranged to be fitted therein, and awrapper of filtering fabric readily The upper end of the canvas bag.

separable therefrom and adapted to be.

constructed and arranged to be quickly fitted therein near one end so asnot to unduly obstruct the Water holding capacity or the 1b rollabilityof the bag, and a bandage of filtering fabric separate therefrom andadapted to be Wound around the frame Work, substantially as described.

Ft. Monroe, Va., July 20, 1914.

POWELL C. FAUNTLEROY. Witnesses: 7

JAMES J. GRANT, R. L. EDWARDS.

Copies 5* this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C."

